Three lessons from Ghostlight L1.
1. Three agents ended their turns while their own detached cargo job was
still running, even though the briefs already said to wait for long jobs.
The stall stopped only once the briefs named the mechanism: block inside
a tool call.
2. A test built on a random draw passed by luck, failing 3 of 40 looped runs.
3. An operator's question about why a mechanism works exposed a defect
that had been present all along.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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